Author: Mark Nelson
MDL-41387 tags: changed character case in string used when deleting a course
http://git.moodle.org/gw?p=moodle.git;a=commit;h=848c33eb87a0cfccf636359771f7ad1bf4e176f0
http://github.com/moodle/moodle/commit/848c33eb87a0cfccf636359771f7ad1bf4e176f0
+ 2.5 en [deletedcoursetags,core_tag]